Paint Calculator
Estimate paint needed for walls and ceilings
ft
ft
ft
Formula
Gal = 2(L+W)×H × 0.85 × Coats / 350
15% subtracted for doors/windows. 350 sq ft/gal coverage.
Examples
15×12 room, 2 coats
≈ 3 gallons.
Frequently Asked Questions
About Paint
Estimate paint needed for walls accounting for doors and windows.